FLDB was created on 2024-02-26 by Fidelity. The fund's investment portfolio concentrates primarily on investment grade fixed income. The ETF currently has 382.81m in AUM and 377 holdings. FLDB is an actively managed fund of investment-grade, domestic and foreign fixed income securities with broad maturities. It aims to maintain a dollar-weighted average portfolio maturity of two years or less, and duration of one year or less.